Finding the Third Proportional to 371,434 and 801,980

Step by Step Solution

1. Step 1: Write the proportion equation
   371,434 : 801,980 = 801,980 : x
2. Step 2: Convert to fraction form
   371,434/801,980 = 801,980/x
3. Step 3: Cross multiply
   371,434x = 801,980 × 801,980
4. Step 4: Simplify right side
   371,434x = 643,171,920,400
5. Step 5: Solve for x
   x = 643,171,920,400/371,434
6. Step 6: Final answer
   x = 1,731,591.40